[HIVE-3852] Multi-groupby optimization fails when same distinct column is used twice or more

• Type: Bug
• Status: Closed
• Priority: Trivial
• Resolution: Fixed
• Fix Version/s: 0.11.0
• Component/s: Query Processor
• Hadoop Flags: Reviewed
• Assignee: Navis Ryu
• Reporter: Navis Ryu
• Created: 03/Jan/13 02:22
• Updated: 16/May/13 21:10
• Resolved: 17/Jan/13 09:28

Description

FROM INPUT
INSERT OVERWRITE TABLE dest1 
SELECT INPUT.key, sum(distinct substr(INPUT.value,5)), count(distinct substr(INPUT.value,5)) GROUP BY INPUT.key
INSERT OVERWRITE TABLE dest2 
SELECT INPUT.key, sum(distinct substr(INPUT.value,5)), avg(distinct substr(INPUT.value,5)) GROUP BY INPUT.key;

fails with exception FAILED: IndexOutOfBoundsException Index: 0,Size: 0